According to Mori V'Rabi Harav Hagaon R Shlomo Miller Shlita. Purim Halachos

 

According to Mori V'Rabi Harav Hagaon R Shlomo Miller Shlita To be מקיים מצות משלוח מנות you need to send 2 types (מינים) of food. Both מינים can have the same ברכה.   1) Two pieces of chicken one roasted and the other boiled etc. are considered 2 מינים   2) Two pieces of chicken, one the top and the other the bottom is considered 1 מין   3) Mixed vegetable salad is considered as 1 מין   4) Cut up vegetables to be mixed into a salad are considered 2 מינים   5) Sandwich (Hamburger, bun, lettuce & tomato, etc.) is considered 1 מין.